baber/WOPTO huggingface dataset:
Patent GB-1450671-A (GB)
Title: Preparation of levulose from granular starch
IPC: C13K11/00
Filed: 1975-03-18
Abstract: 1450671 Converting starch to levulose CPC INTERNATIONAL Inc 18 March 1975 11301/75 Heading C2S A process for the enzymatic conversion of starch to Ievulose comprises mixing a granular starch with water, bacterial alpha amylase, glucoamylase and glucose isomerase at a temperature of 40‹ to 70‹ C. but below the. actual gelatinization temperature of the starch, and at a pH of from 5À0 to 7.0 and maintaining the starch in essentially granular form until a soluble hydrolysate is produced, wherein any residual insoluble starch is in essentially granular ungelatinized form. The alpha-amylase is preferably derived from a Bacillus microorganism, e.g. Bacillus licheniformis, e.g. NCIB Nos. 8059 and 8061, and ATCC Nos. 6598, 6634, 8480, 9945A and 11945. The isomerase preferably derives from Streptomyces albua YT-5 (ATCC 2132), or from an Arthrobacter species.
Patent GB-113542-A (GB)
IPC: B01F5/00
Abstract: 113,542. Wilson, J. April 17, 1917. Siphon bottles; forcing gas into liquid.-A tube C, through which aerating-gas is passed into liquid in a closed vessel T, and from which the aerated liquid is subsequently discharged, is provided with a flap valve V which is closed during injection of gas, so that gas passes only through lateral perforations P. The valve opens during discharge of liquid.
Patent GB-525867-A (GB)
Title: Improvements in or relating to rail fastening means
IPC: E01B9/08
Filed: 1939-04-14
Abstract: 525,867. Spikes. ELASTIC RAIL SPIKE CO., Ltd. April 14, 1939, Nos. 11405 and 11406. Convention dates, April 16, 1938, and April 10, 1939. [Class 89 (ii)] A resilient rail spike, which may be made up of strips or laminations of spring steel, is made with a head part B coiled into a loop terminating in an arm C which in use bears resiliently on the rail flange. When made up of a pair of strips, the strip which is uppermost in the loop part may terminate at the top thereof. The strips may be splayed towards the upper end and may be held close together by being driven into the sleeper. When made solid the spike may be reduced in section toward the rail gripping end. In the construction of a solid spike such as is shown in Fig. 6, a square section metal bar is shaped correspondingly to the sections shown in Figs. 9 and 10, which are taken at right angles to one another. In the construction shown in Fig. 11 a pair of coiled gripping arms 9b are provided, a member 12 shaped as shown being used for driving home the spike.
Patent GB-564875-A (GB)
Title: A self-contained steam turbine
IPC: F02K5/00
Filed: 1943-07-14
Abstract: 564,875. Steam generators. GREEN, A. L. July 14, 1943, No. 11416. [Class 123 (ii)] [Also in Group XXVI] A steam turbine is provided with a number of steam generators 1, heated by tubes 2, connected by pipes 6 with a casing 7. Stationary blades 8 direct the steam on to rotor blades 11, and the exhaust steam flowing through an outlet 18 may be used for jet propulsion. The tubes 2 may be heated by hot gases or by electric elements supplied with current by a battery 5 charged by an electric generator which is driven by the turbine. Water is supplied by pipes 9, to nozzles 10, by one or more pumps driven by the turbine, the water preferably being pre-heated. The casing 16 may be electrically heated and encased in a metal jacket lined with asbestos.
Patent GB-965016-A (GB)
Title: Improvements in or relating to electric modulator circuits employing transistors
Inventor: ALLEN RICHARD MAURICE
IPC: H03C1/54
Filed: 1962-03-26
Abstract: 965,016. Amplitude modulation. GENERAL ELECTRIC CO. Ltd. March 19, 1963 [March 26, 1962], No. 11435/62. Drawings to Specification. Heading H3R. Carrier is applied in push-pull over a centretapped impedance to the bases of a pair of transistors, modulation being applied between the centre tap and a common connection of the emitters, and amplitude modulation (together with carrier) derived in push-pull from the collectors. The input and output may be through transformers. On-off signalling may be effected by a negative bias applied over a diode to the common emitters. The transistors may act as limiters to the applied carrier.
Patent GB-909844-A (GB)
Title: Improvements in and relating to apparatus for collecting measured quantities of liquid
Inventor: DORE CHARLES FRANK GAMBLIN
IPC: G01N1/18
Filed: 1959-04-03
Abstract: 909,844. Bottling. NATIONAL RESEARCH DEVELOPMENT CORPORATION. April 3, 1959, No. 11453/59. Addition to 860,567. Class 125(2). Apparatus for filling containers from a common discharge point 21 comprising a turntable 14 on which the containers are disposed in a plurality of rows forming a spiral round a common axis with the same linear centre to centre distance between the containers in every row as described in the parent Specification is modified by the provision  of a spindle for the turntable which has its bearing 22 with foot 23 arranged to slide in horizontal guides 24 disposed on a support 25. Discs 11 support the containers 15 and as the turntable is revolved by gear wheel 17 it also slides laterally so that each container is brought  beneath the discharge point. The turntable may be supported by pads 26 and 27 of polytetrafluoroethylene, a third one of which may be disposed so that the gear wheel protrudes through a slot therein. Alternatively rollers may be used. The last two holes in which the gear wheel engages have a slot formed between them so that the gear rotates without turning the turntable further. The last container may have a wide mouth and means for catching any overflow therefrom may be provided. The discs 11 and turntable 14 are made to be removable as a unit.
Patent GB-803910-A (GB)
Title: Heat interchanger
Filed: 1957-04-09
Abstract: 803,910. Tubular heat exchangers. UNION CARBIDE CORPORATION. April 9, 1957 [April 13, 1956], No. 11481/57. Class 64(3) A heat exchanger for corrosive fluids comprises a pair of carbon or graphite tube sheets 22, 26, carbon or graphite tubes 16 extending between the tube sheets, metallic, longitudinally continuous tie rods 20 having corrosion resistant ends and baffles 18 spaced along the tie rods, the two ends of each tie rod being slidably positioned each in an individual socket 34 in a tube sheet thereby permitting longitudinal movement of the rods with respect to the tube sheets due to differences in thermal expansion between the metallic rods and the carbon or graphite tubes. The tie rods 20 may be made of stainless steel or alternatively if the rods are made of steel or other metal subject to corrosion, the ends are capped with tie rods 20 may be made of stainless steel a ferrule 36 of brass or other corrosion resistant metal.
Patent GB-797082-A (GB)
Title: Current feedback circuit for push-pull amplifiers
Inventor: BACH SAMMY MEREDITH ASHLEY
IPC: H03F1/36
Filed: 1955-04-21
Abstract: 797,082. Valve amplifying circuits. PYE, Ltd. April 5, 1956 [April 21, 1955], No. 11551/55. Class 40 (6). A push-pull amplifier, and more particularly a television deflection amplifier, is provided with current negative feedback. The amplifier comprises R.C. coupled stages V1, V2, V3, V4 in cascade, the output load Z comprising a deflection coil and being connected between the cathodes of valves V3, V4 which are provided with cathode circuit resistances. Current negative feedback is derived from a resistance Rf in series with the output load Z, one end of which resistance is connected to the grid of a feedback amplifier V5 and the other to its cathode via resistance RK. The valve V5 has its anode connected in parallel with that of V1 and its cathode is connected to a potentiometer R2, R3 across the H.T. supply. Resistances RK, R2, R3 are adjusted so that feedback other than that due to the voltage across resistance Rf is suppressed.
Patent GB-115644-A (GB)
IPC: F23H1/00
Abstract: 115,644. Does de Bije, A. J. M. A. R. van der. May 2. 1917, [Convention date]. Grates; air, supplying.-A furnace adapted for burning gas coal in a thick bed comprises a grate portion having normal air openings, preferably located centrally at a higher level, and a further grate portion having fewer air openings, means being provided for the introduction of secondary air above the fire. Coal is fed to the primary grate 6 from the front, beneath the fire thereon, by a reciprocating plun. ger over an extended dead plate. Behind the grate 6 is a sparsely perforated dead plate, and on each side of it are inclined plates 10 and horizontal plates at a lower level having a tew perforations only. Means for discharging ash and clinker are provided at the back of the lower pori,ions of the grate. Conduits 16 for the supply of secondary air above the fire are embedded in the brickwork. The furnace is shown applied to a water-tube boiler.
Patent GB-757824-A (GB)
Title: Apparatus for sorting letter mail
IPC: B07C3/02
Filed: 1954-04-21
Abstract: 757,824. Letters sorting. POSTMASTER GENERAL. April 21, 1954 [Oct. 1, 1953], No. 11567/54. Class 78 (1). An apparatus for sorting letters electronically comprises electronic code-reading means, electronic memory means and electromechanical sorting means, the arrangement being such that the code-reading means scans letters which have had imposed thereon pattern code interpretations of the addresses and interprets said codes into electronic pulse patterns which on being applied to the memory means causes it to supply actuating signals to the sorting means. The letters are first sorted by hand into batches according to countries or other large areas. Each batch is then placed upon the appropriate conveyer 5, Fig. 2, and carried to a coding station 7 where an operator is stationed before the keyboard 8 of a code printer 9. The operator reads the address on each letter and in some cases presses the appropriate keys to print the coded version of the abbreviated address on the letter. Such a code is described in Specification 750,422, [Group XIX]. Where, however, a letter is addressed to a large city in the country, it may be directed by the operator to a box allocated to such city without imposing a code thereon. Hand, or footactuated controls are provided for this purpose which when actuated cause electromechanical means to come into operation to divert such letters. The remaining letters are carried by a conveyer 10a to an electronic code reader which interprets the code and passes the address in the form of binary electrical pulses to a magnetic drum, or film-type, memory device 12. The code reader 11 is set to interpret the name of the town or village. Pulse patterns corresponding to the names of all towns, villages, &c. are impressed on one side of the drum surface and pulse patterns corresponding to the name of the distributing post office in the area in which the town lies are impressed on the other side opposite each place name. When a pattern of pulse received from the code reader 11 is applied to the memory, the pulse pattern for the distributing post office will be given when the pulse pattern applied from the code reader and the corresponding pulse pattern on the drum coincide. The pulse pattern read off the drum is used to actuate mechanical means to guide the letter to the appropriate box 13. Letters before reaching the stations 7 may be fed to a known electronic character reading device which is capable of interpreting typewritten and printed characters into pulse patterns. These pulses are fed into a code converter which passes them to a code printer similar to the code printer 9. If the number of letters for any destination are more than can be dealt with at one station 7, they are divided among several stations and after coding are combined into a single stream.
Patent GB-110899-A (GB)
Title: Improvements in Swings or Apparatus for Physical Development.
Inventor: MENARD MARTHE
IPC: A63B7/00
Filed: 1917-08-15
Abstract: 110,899. Menard, M. Aug. 15, 1917. Swings.-The seat 6 of a swing is adjustable in height, and an adjustable post 12 is situated some distance in front of the swing for the child to try and touch with its feet while swinging. The post is provided with a base 13 and struts 14, and may be movable to and from the swing on a rack that is fixed to the ground. Chains 8 attached to the seat 6 by cords 7 engage with hooks 5 at the lower ends of the suspending cords 3. Arm-rests 9 and an elastic back-support 10 are provided.
Patent GB-117741-A (GB)
IPC: F02M3/08
Abstract: 117,741. Clench, C., and Westbury, C. Oct. 10, 1917. Spray carburettors.- -A spray carburettor comprises a main nozzle 6, and an auxiliary nozzle 8 in a chamber 11 the outlet of which is near the edge of the throttle valve 7, the inlet 10 communicating with the main air inlet 2 and being controlled bv the lower bevelled end of an adjustable tube 9. The suction on the outlet of the nozzle 6 may be regulated by enclosing the outlet in a tube 15 which communicates with the mixing chamber through orifices 16 and with the atmosphere through orifices 17 which. may be adjusted in area. In modifications, the auxiliary chamber 11 discharges (1) just above the edge of the throttle valve and (2) through the spindle and radially through one of the wings thereof.
Patent GB-128632-A (GB)
Title: Improvements in Flare-producing Projectiles.
Inventor: MATHISON WILLIAM GEORGE
IPC: F42B12/42
Filed: 1917-08-17
Abstract: 128,632. Mathison, W. G., and Gilmore, L. H. Aug. 17, 1917. Projectiles; projectile fuses. - Relates to flare-producing projectiles in which the charge is ignited on impact, and consists mainly in providing the flare charge in the form of one or more cartridges or candles F connected by one or . more fuse-trains P, H to a percussion cap G associated with a firing-striker K in the nose of the projectile, and in providing at the rear end a carrier C which contains a noxious-gas producing substance. The carrier is ejected and its contents ignited when an expelling-charge D is ignited simultaneously with the flares, the noxious gas that is emitted serving to protect the flares from interference. The projectile has a weighted point B and lateral guiding-vanes I. A stem J attached to the part C adapts the projectile for discharge from a rifle, and a message-carrier N may be fitted into the stem.
Patent GB-229155-A (GB)
Title: Mechanical inking device for rotary duplicating machines
IPC: B41L13/18
Filed: 1924-05-13
Abstract: 229,155. Delpy, G. May 13, 1924 Inking-apparatus. - In rotary duplicators of the type comprising a drum partly covered with a perforated sheet on which the stencil is secured and a permanent ink container mounted in the drum and having orifices in the base through which ink is fed to the ink-distributing rollers, the orifices are provided with independently-movable valve devices controllable singly or in groups so that the inking may be restricted to any part of the drum. The valve - operating devices may be actuated by hand or otherwise, electromechanical means being employed in the arrangement shown. The container 1 is secured by a clip 3 and connections 4 to the axle bar 2 of the drum T, and has spaced orifices 7 in its underside through which ink drops between the rollers R, R<1>. The orifices 7 are normally closed by balls 8 mounted on spring-pressed slidable hooks 9 adapted to be moved to uncover the orifices by levers 10 pivoted on a bar 11, the levers 10 being actuated by hand or by electromagnets 12 mounted on the top of the container. Current is led to the magnets by contact-pieces 13 carried on an insulated plate 14 and by contact screws 16 on a conducting plate 15 fitted with a terminal 17. When current is passing through all the magnets, the balls 8 are all drawn away from the orifices and ink is supplied between the rollers R, R<1> along their whole length, but current may be cut off from any of the magnets by manipulating the contact screws 16 to close any number of the orifices 7 and restrict the supply of ink to the part of the rollers R, R<1> corresponding with the area of the drum covered bv the stencil. The, two end levers may be connected to and actuated by the two adjacent levers by means of sliding catches 19, which may be moved inwards when the two end orifices are to be kept closed.
Patent GB-124656-A (GB)
Title: Improvements in Torpedo Protecting Devices for Ships.
Inventor: ROYSTON ERNEST RICHARD
IPC: B63G9/00
Filed: 1918-07-20
Abstract: 124,656. Royston, E. R. (Lorenc, J.). July 20, 1918. Torpedo screens.-A removable and verticallyadjustable bell, surrounding the hull of a ship, is composed of curved laminated shields 15, the layers of which are arranged alternately longi. tudinally and vertically The forward shields a:' each side are pivotec. together at 16, Fig. 1, and the rear shields are secured by clamps 18 surrounding the stern, the shields being held away from the hull by spacing- springs 22. The shields are secured to upright racks 20, adjusted vertically by rack-and-pinion mechanism.
Patent GB-567535-A (GB)
Title: Improvements relating to wheels
IPC: B60B25/20
Filed: 1943-07-21
Abstract: 567,535. Wheel rims; attaching hubs. LIPMAN, N. I. July 21, 1943, No. 11916. [Classes 144 (i) and 144 (ii)] A two-part vehicle wheel has a main part 1 comprising a flange 2 and well 5 with side walls 4, 6 and aligned seats 3, 7 and a detachable flange 11 secured to the disc 8 by bolts 14. The main part 1 has a central disc 8 with stiffening ribs 20 and holes 18 at different circumferential and radial spacing for interchangeable hubs 15. The side flange 2 may also be detachable and both flanges 2, 11 may consist of a number of segmental sections.
Patent GB-834236-A (GB)
Title: Bending mode electromechanical transducer
IPC: B06B1/06
Filed: 1956-04-19
Abstract: 834,236. Piezo-electric elements. TECHNICAL CERAMICS Ltd. April 19, 1956 [April 19, 1955], No. 12030/56. Class 40 (8). A bending-mode transducer comprises a plate incorporating one or more layers of piezoelectrically active ceramic material, e.g. barium titanate, which is supported either at its centre or at the whole of its periphery. The transducer may comprise two active elements in which opposite stresses are produced in response to an electric signal. The elements may be polarized in the same direction and driven in parallel, or they may be oppositely polarized and driven in series. The circular transducer 15 of Fig. 2, is clamped at its periphery to the top edge of a cylindrical case 26 by screws 16. The centre of the element vibrates in the directions indicated by the arrows. The top surface of the disc-shaped ceramic element 34, Figs. 9 and 10, is provided with an electrode 35 whilst the bottom surface is bonded to a metal plate 38 supported on a massive central stem 39. The plate 38 constrains the element to vibrate in a flexural mode about a fixed central point. In order to improve the Q of the transducer the plate 38 is loaded at its periphery by an annulus 37 which may be machined in one piece with the plate. Radial slits 37 are provided to relieve compressional stresses which arise during flexure. The metallic plate 38 may be replaced by an active element which forms a bimorph with the element 34. A second electrode is provided on the surface of the lower element. The transducer of Fig. 6 comprises two active elements 29 both carrying a number of ring electrodes 30. The elements are polarized in a radial direction with opposite polarities on adjacent rings and opposite fields in both elements. Connections are made to alternate electrodes in common with vertically opposite electrodes of the same polarity.
Patent GB-1523068-A (GB)
Title: Division device
IPC: G06F7/72
Filed: 1976-03-25
Abstract: 1523068 Division apparatus INST MATEMATIKI I MEKHANIKI AKAD NAUK KAZAKH SSR 25 March 1976 [25 March 1975] 12078/76 Heading G4A To inputs 6 and 3 of dividing apparatus are supplied a dividend and a divisor each represented by the remainders when the operand is divided by a plurality of relatively prime bases, representations of the values of the dividend and divisor in a positional (e.g. decimal) notation being supplied to inputs 8 and 13. The first remainder of the divisor B is inspected at 1; if it is 0 the divisor is exactly divisible by the first base and the divisor B and dividend A are divided at 4 by the first base; if the first remainder is not 0 the divisor B and dividend A are divided at 4 by 2: this is repeated until the divided divisor Bk equals 1, as detected by a circuit 14. The divided dividend Ak is then compared with zero at 19; if Ak = 0 the quotient is provided by an adder 24, the quotient being represented in the same way as the dividend and divisor. If Ak is not zero the product Ak. B is formed at 28 and from this is subtracted at 48 the dividend A. If the resulting signal from 48 would be negative, as determined by a unit 33, it is added, in 48, to the range (equal to the product of the bases) of the number representation. Unit 33 also controls, via inputs 43, 47, adder 24 to add or subtract Ak from the contents of the adder 24. The output from unit 48 is then used as a new dividend and the above steps are repeated until Ak is detected at 19 to be zero; the quotient is then in adder 24.
Patent GB-743269-A (GB)
Title: Improvements in or relating to recording devices
Inventor: WALKER ERIC ALEXANDER PHILIP
IPC: G11B15/44
Filed: 1953-05-01
Abstract: 743,269. Magnetic recording and reproducing apparatus. KELVIN & HUGHES,. Ltd. April 22, 1954 [May 1, 1953], No. 12127/53. Class 40(2) [Also in Groups XVI and XIX] Magnetic recording apparatus comprises driving rollers 11, 12 for feeding a strip 10 of material with means for continuously rotating them at different speeds corresponding to the desired speeds of the strip and means for pressing the strip into driven engagement with either or any one of the rollers. The strip 10 passes above driving rollers 11, 12 driven by an electric motor 15 so that roller 12 rotates at high speed and the roller 11 through reduction gearing 17 at low speed. A rocker arm 20 pivoted on a lever 25 carries two idler rollers 22, 23 and a spring 24 urges the arm 20 so that the roller 22 presses the paper 10 against the roller 11. The strip is.normally driven at low speed changing to high speed when a solenoid 26 is operated, its armature 27 acting, e.g., through a spring 28 to rock the arm 20. The invention may be applied to pen recorders, magnetic recorders or to recorders using photographic media,. e.g., for recording variations of electric current and the signal being recorded may effect operation of the solenoid 26 for changing to high speed.
Patent GB-1209631-A (GB)
Title: Pyrazoline compounds
Inventor: KEATS GEORGE HAROLD
IPC: D06L4/671
Filed: 1967-03-15
Abstract: 1,209,631. Pyrazoline compounds. IMPERIAL CHEMICAL INDUSTRIES Ltd. 16 Feb.; 1968 [15 March, 1967], No. 12171/67. Heading C2C. [Also in Divisions C3 and D1] Novel pyrazoline compounds having the general formula wherein X represents a hydrogen atom, a halogen atom or an alkyl, alkoxy or acylamino group, Y represents a hydrogen atom or an alkyl group containing from 1 to 4 carbon atoms, and Z represents an alkyl, alkenyl, substituted alkyl, aralkyl, aryl or substituted aryl group, are prepared by reacting a pyrazoline compound having the formula wherein X is as above and M represents an alkali metal atom or a trialkylammonium group, with an α-halogenocarboxylic ester derivative having the formula wherein Hal represents a chlorine or bromine atom and Y and Z are as above, in the presence of a tertiary amine or an N,N-dialkyl-formamide, and optionally in the presence of a solvent, e.g. a hydrocarbon, a tertiary amine, or an excess of the α-halogenocarboxylic ester, at 50-150‹ C.